PetroBowl (Drilling)

1.     In the majority of sedimentary basins, the overburden pressure increased linearly with depth. In psi/ft, what is the typical value of this gradient?

Name a source of vertical stress.

Volcanic tuff altered to montmorillonite is called what?

Three mutually perpendicular normal stresses in a coordinate system where all shear stresses vanish defines what?

What constant is used to directly relate strain and stress?

To what approximate depth of water are submersible rigs able to drill in?

What are type of submersible rigs?

What term is used to refer to the use of thrusters to keep a semisubmersible rig over the drill hole?

When are the wellhead and blowout preventers mounted on the seafloor what connects the blowout preventer to the rig?

To what depth of water is a semi-submersible rig capable of drilling in?